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Renesas R7F102GFE3CFP#AA0
- Part No.:
- R7F102GFE3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F102GFE3CFP#AA0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,120
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Product details
Overview
R7F102GFE3CFP#AA0 from Renesas is a 44-pin LQFP-44, 64-KB flash, 4-KB RAM RL78/G22 16-bit microcontroller with true low-power operation (37.5 µA/MHz active, 200 nA STOP), integrated capacitive touch sensing (up to 29 keys), and dual UART/I²C/SPI interfaces. It operates from 1.6–5.5 V and supports industrial temperature range (−40 to +105°C), targeting battery-powered HMI and sensor-edge control applications.
For engineers reviewing the R7F102GFE3CFP#AA0 datasheet, R7F102GFE3CFP#AA0 pinout, R7F102GFE3CFP#AA0 application, or R7F102GFE3CFP#AA0 equivalent, key selection criteria include its 44-pin LQFP package, 64-KB code flash with data flash shield, SNOOZE mode sequencer for ultra-low-power event-driven wake-up, and CTSU2La-based touch sensing without external components.
Technical Context
The R7F102GFE3CFP#AA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). It integrates a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 configurable commands-including ADC sampling, timer comparison, and CTSU measurement-without CPU, RAM, or flash activation.
Its peripheral set includes eight 16-bit TAU channels, one 32-bit interval timer, RTC with alarm and correction, 10-bit ADC (10-channel), and flexible serial interfaces: up to 4 UARTA channels (LIN-capable), 6 I²C/Simplified I²C channels, and 5 Simplified SPI (CSI) channels-all configurable via PIOR register remapping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response at ultra-low power. |
| Flash / RAM | 64 KB code flash (2-KB blocks) + 2 KB data flash + 4 KB SRAM; supports background rewriting and flash shield window protection. |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables multi-year battery life in intermittent-sensing nodes. |
| Capacitive Sensing | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance; eliminates external RC networks. |
| Operating Voltage / Temp | 1.6–5.5 V supply; −40 to +105°C ambient range (3C grade); qualified for industrial control and automotive cabin modules. |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz); low-speed 32.768-kHz oscillator with adjustability; external crystal support (XT1/XT2). |
| Timers & RTC | Eight 16-bit timer array channels; 32-bit interval timer (1×32-bit, 2×16-bit, 4×8-bit modes); RTC with 1-second to 99-year counting and alarm interrupt. |
Pinout & Package
44-pin LQFP package (10 × 10 mm, 0.80-mm pitch), exposed pad recommended to be connected to VSS. Pin functions multiplexed per peripheral I/O redirection register (PIOR) settings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P12 | SCK00/SCL00, SI00/RxD0/SDA00, SO00/TxD0 | Primary CSI/I²C/UART0 interface; supports hardware flow control and LIN bus framing. |
| P13–P15 | TxD2/SO20, RxD2/SI20, PCLBUZ1/SCK20/SCL20 | Dual UART2 + I²C2 channel; buzzer output and clock generation co-located for audio feedback systems. |
| P30–P31 | INTP3/TSCAP/RTC1HZ, TI03/TO03/INTP4/TS01/PCLBUZ0 | Touch sense capacitor input + RTC 1-Hz output + independent timer channel + buzzer drive; enables time-synchronized touch polling. |
| P50–P51 | TS00/INTP1/SI11/SDA11, TS28/INTP2/SO11 | CTSU input + interrupt + secondary I²C/SPI channel; allows parallel touch and communication without CPU intervention. |
| P60–P61 | SCLA0, SDAA0 | Dedicated I²C0 clock/data pins; fixed-function assignment ensures timing-critical I²C slave compatibility. |
| P121–P122 | X1/XT1, X2/EXCLK/XT2 | Crystal oscillator inputs with internal load capacitance; supports 32.768-kHz RTC crystal and up to 20-MHz main crystal. |
| RESET, REGC, VDD, VSS | Reset input, regulator capacitor, power, ground | REGC requires 0.47–1 µF capacitor to VSS; RESET is Schmitt-triggered with POR/LVD supervision. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step CTSU/ADC/timer sequences autonomously; reduces active CPU time by >90% in periodic sensing tasks. |
| Data Flash Background Operation | Enables firmware updates or logging while executing application code from main flash; no interrupt latency penalty during rewrite. |
| Peripheral I/O Redirection (PIOR) | Reassigns up to 12 peripheral functions (e.g., UART, I²C, timers) to alternate pins without PCB redesign. |
| Capacitive Touch Unit (CTSU2La) | Single-pin self-capacitance or matrix mutual-capacitance support; built-in noise rejection and auto-calibration reduce BOM cost. |
| Voltage Detector (LVD0/LVD1) | Dual-level brown-out detection (2.7 V / 2.2 V typical); triggers reset or interrupt before flash corruption or analog degradation occurs. |
Applications
| Industrial HMI Panel | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Wall-mounted HVAC interface with 12-button capacitive keypad, LCD backlight control, and wireless module communication. IC Role / Device Role / Timing Role: Main system controller managing touch scan, temperature ADC reading, fan speed PWM, and UART-to-ESP32 bridge. Use Value: SMS-driven touch polling consumes <1 µA average current between user interactions; 64-KB flash hosts full UI stack and OTA update handler. |
Use Scenario: Battery-powered programmable thermostat with ambient/humidity sensing, schedule logic, and BLE connectivity. IC Role / Device Role / Timing Role: Primary MCU handling RTC-based scheduling, 10-bit ADC for NTC thermistor, and UART-to-BLE SoC interface. Use Value: 200-nA STOP mode extends CR2032 battery life beyond 5 years; integrated LVD prevents erroneous readings during voltage sag. |
| Programmable Power Outlet | Industrial Sensor Node |
|
Use Scenario: Wi-Fi-enabled smart outlet with energy monitoring, overload protection, and capacitive touch power button. IC Role / Device Role / Timing Role: Local safety monitor interfacing with current-sense amplifier, relay driver, and touch input. Use Value: Hardware-accelerated CTSU detects intentional press vs. accidental contact; 32.768-kHz RTC enables precise energy logging intervals. |
Use Scenario: DIN-rail mounted vibration/temperature node transmitting data via RS-485 to PLC every 10 seconds. IC Role / Device Role / Timing Role: Edge data aggregator performing ADC sampling, FFT preprocessing (via MAC instructions), and UART-to-RS485 transceiver control. Use Value: Multiply-accumulate (MAC) support accelerates 16-point FFT in <200 µs; 105°C rating ensures reliability inside control cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GFC3CFP#AA0 | Same 44-pin LQFP package and RL78/G22 core, but with 32 KB code flash and identical peripherals. | Targeted at cost-sensitive designs where firmware size ≤30 KB; retains all low-power and touch features. | Select when application firmware fits within 32 KB and BOM cost reduction is prioritized over future scalability. |
| R7F102GFE3CFB#AA0 | Identical 64-KB flash and feature set, but in 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch) with additional GPIO and ADC channels. | Required when >40 GPIO or >10 ADC inputs are needed; footprint change mandates PCB revision. | Choose only if pin count expansion or extra analog inputs justify re-spinning the board layout. |
Compared with R7F102GFC3CFP#AA0, the R7F102GFE3CFP#AA0 provides 32 KB more flash for complex UI or protocol stacks without increasing package size; compared with R7F102GFE3CFB#AA0, it delivers identical functionality in a smaller, lower-cost 44-pin LQFP footprint with no layout impact.
Availability
R7F102GFE3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, and programmable power outlets requiring stable component supply across extended product lifecycles.
Supply support for R7F102GFE3CFP#AA0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RL78/G22 product line is engineered for ultra-low-power embedded control with integrated human-machine interface capabilities, targeting battery-operated sensors, appliances, and industrial edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7F102GFE3CFP#AA0?
The R7F102GFE3CFP#AA0 features the RL78 16-bit CISC core with a 3-stage pipeline, supporting a maximum operating frequency of 32 MHz. At this speed, the minimum instruction execution time is 0.03125 µs using the high-speed on-chip oscillator. The core also supports ultra-low-speed operation at 32.768 kHz with a 30.5-µs instruction cycle for RTC and deep-sleep coordination.
Does the R7F102GFE3CFP#AA0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102GFE3CFP#AA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 keys in self-capacitance mode (one pin per key) or matrix mutual-capacitance configurations. It includes built-in noise cancellation, auto-calibration, and direct integration with the SNOOZE mode sequencer to enable touch wake-up with sub-µA average current.
What are the memory resources available on the R7F102GFE3CFP#AA0?
The R7F102GFE3CFP#AA0 provides 64 KB of code flash memory organized in 2-KB blocks, 2 KB of data flash memory with background operation (BGO) capability, and 4 KB of on-chip SRAM. Code flash includes security features such as block erase/write prohibition, while data flash guarantees 1,000,000 rewrite cycles (typ.) and supports simultaneous read-while-write operations.
Which serial communication interfaces does the R7F102GFE3CFP#AA0 support, and how many channels are available?
The R7F102GFE3CFP#AA0 supports three serial interface types: Simplified SPI (CSI) with up to 5 channels, UART/UARTA (including LIN-bus support) with up to 4 channels, and I²C/Simplified I²C with up to 6 channels. All interfaces support peripheral I/O redirection (PIOR), enabling flexible pin assignment without hardware changes.
What low-power modes are available on the R7F102GFE3CFP#AA0, and what are their typical current draws?
The R7F102GFE3CFP#AA0 offers HALT, STOP, and SNOOZE modes. STOP mode draws 200 nA (typ.) with RTC and CTSU retention; HALT mode consumes 37.5 µA/MHz during active operation; SNOOZE mode enables autonomous peripheral sequencing (e.g., CTSU scan + ADC + compare) at ~1 µA average current, eliminating CPU wake-ups for periodic tasks.
R7F102GFE3CFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G22
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- Capacitive Touch, LVD, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GFE3CFP#AA0 FAQ
1.How can I place an order for R7F102GFE3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GFE3CFP#AA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R7F102GFE3CFP#AA0 reliable?
The price and inventory of R7F102GFE3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GFE3CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GFE3CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GFE3CFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GFE3CFP#AA0?
R7F102GFE3CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GFE3CFP#AA0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R7F102GFE3CFP#AA0?
For technical support, including R7F102GFE3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GFE3CFP#AA0 requirements.
6.How does Aetrix verify that R7F102GFE3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GFE3CFP#AA0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R7F102GFE3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GFE3CFP#AA0?
All R7F102GFE3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GFE3CFP#AA0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R7F102GFE3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GFE3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GFE3CFP#AA0 Tags
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